Loom



A ril 6,1926. I 1,579,858

Q; CROMETON LOOM Filed Nov, 11, 1913 8 Sheets-Shet 1 April 6 1926.

. 1,579,858 C. CROMPTON LOOM Filed Nov. 11, 1919 8 Sheets-$heet 2 lw/venior April 6 1926.

C. CROMPTON LOOM Fi led April 6 1926.

- 0. CROMPTON LOOM 8 Sheets-Sheet. 5

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c. CRO'MPTON LOOM Filed Nov i1, 1919 8 Sheets-Sheet 6 April 6 1926.

C. CROMPTON LOOM Filed Nov 11, 1919' 8 Sheets-Sheet 7 n nw am a W7 mwf WWW IWMM April 6 1926. 1,579,858

c. CROMPTON LOOM Filed Nov 11, 1919 8 Sheets-Sheet 8 lnveniaw Patented Apr. 6, 1926.

UNITED STATES rarest orr cs.

CHARLES oRoMr'ron', or wononsrnn, MASSACHUSETTS; osonon cnoiirrron A1)- MINISTRATOR on sArn CHARLES onoii'irron, nncn snn.

Loom.

Application filed. November To all whom it may concerns I Bcit known that 1, CHARLES CnoirrToN, a citizen of the United States, residing at li orcester. in the county of Worcester and State of Massachusetts, have invented a new and useful Loom, of which the following is a specification. V

This invention has to do with automatic looms, and particularly that class of automatic looms wherein cloth of perfect texture is woven.

It has heretofore been proposed to weave automatically with a filling feeler motion used in conjunction with bobbin or shuttle replenishing mechanism. In all such looms when the filling breaks the loom is arranged to shut down, and when such a thing happens itis necessary for the weaverto extract the partial pick by hand.

It has also heretofore been proposed to extract. the broken or exhausted pick automatieally, shown in my application for patent, Serial No. 108,197, filed July 8, 1916, of which Serial No. 245,202 was a continuation, the latter now being Patent No. 1,319,-

759 dated Qctober 28, 1919. But in this loom while 'f'actional picks are eliminated, it has been found that the first kick from a fresh filling carrier is apt to land in any of a series of sheds. This causes in'iproved but imperfect cloth.

The object of my invention is to improve on that mechanism shown in the above-referred to applications, and I herewith show means not only to extract the broken or partial pick from the shed, but also, to manipin late the shedding motion of a loom in such a way to place the first pick from a tresh tilling carrier in the shed from which the broken or partial pick has been extracted.

I also show an improved method. of extracting the partial pick. In my former applications I showed the extracting mocha-- nisin separate from the lay, while in my present application Ihavearrangcd this mechanism so that it operates continuously with the lay, as will be fully described. in the body o'f'the specification. Similar letters on the drawings represent similar parts.

As liar as I am aware no loom hasyet been proposed which shows means to extract the 11, 1919. Serial 110,237,297.

partial pick and to supply fresh filling, placing the first shot oftilling in the shed from which the imperfect pick has been automatically taken out.

With these and other objects in view, my

invention consists in a novel combination thereto.

Fig. 2 is a plan view of the loom shown in Fig. 1. F 1g. 3 is, on an enlarged scale, a sectional View taken on line 33, Fig. 1, looking in the direction otarrow a, same figure.

Fig. 4 is, on an enlarged scale, a detail of my improved withdrawing means.

Fig. 5 is a plan view of the parts shown in Fig. l. i

F 6 is, on an enlarged scale, a sectional view taken substantially on line 66, Fig. 5, looking in the direction of arrow 6, same figure.

rig. 7 is a sectional View taken on line 7 7, Fig. 54, lookingin the direction of arrow 0, same figure.

Fig. 8 is an end View of the parts at Fig. 7.

Fig. 9, is a transverse section taken -substantially on line 99, F g. 8.

10 is a diagrannnatical view of a series of looms, having my attachment seshown cured thereto, and connected to a single re ceiver for broken ends.

Fig. 11 is a front view of a portion of a looin having the harness holding mechanism attached thereto, the mechanisn'i for removing the broken ends being omitted.

.Fig. 19. is a sectional view taken on line 12-1:2, Fig. 11,,loohing in the direction of arrow a, same figure.

Fig. i3 is a detail View of one of the cams.

Fig. M is a detail view of the locking block.

Fig. 15 is a detail VlCW of the harness looking cam, and,

Fig. 16 is a detail View of the receiving member.

In the accompanying drawings, and 11 are the loom sides, having the usual breast beam 12 and girt 13, also being provided with a drive shaft 14 and crank shaft 15, which are operated and driven in the usual and well known way. Supported on the bottom shaft 16 are the lay swords 17, and 18, having secured to the upper portion thereof the lay 19 and hand rail 20.

The above mentioned parts are of the usual and well known construction.

Secured to the lay 19 is a member 21, said member being provided with an upper and lower track 21 and 21 see Figs. 1, 7 and 8.

Slidably mounted on the member 21 is a carriage 22 having wheels 22 and 22 which engage the tracks 21 and 21 of the member 21.

Said carriage 22 has secured thereto a support 23 for a casing 2st, said casing hav ing slidably mounted therein the cutting member 25, said member having, at the upper portion thereof, an opening 25, which, when in its upper position, registers with the opening 2 1" of the casing 2%, thereby forming a continuous passage from the chamber 26 of the head 26, through the cutting member 25.

Secured to the lay 19 is a stand 27, said stand having pivoted thereto at 28 a bell crank lever 29 which has pivoted thereto at 30 one end of a horizontally extending lever 31; the opposite end of said lever being pivoted at 32 to the slide member 22.

Pivoted at 38 to the bell crank lever 29 is the upper end of a connecting rod 84, the lower end of said rod 341. being pivoted at 35 to one end of the cam lever 36, and the opposite end of said cam lever being pivoted at 37 to a stand 38, secured to the cross girt 13, see Figs. 1v and 3.

Pivoted to the cam lever 36 is a cam roll '36 which engages and is operated by the cam 40 secured to the drive shaft 14.

Secured 011 the shaft 16 is a stand 11 which has pivoted thereto at 42 the lower end of a rod 48, the upper end of which is pivoted an to the coupling %5 which is secured to the cutting member 25. Secured to the cutting member 25 by means of the coupling 45 is one end of a flexible tubing 16, the opposite end of which is directly or indirectly connected with the vacuum device 47, see Figs. 10 and 16.

I will now briefly describe the operation of the above mentioned parts.

After the filling (not shown) has been' passed through the open shed, and the lay 19 is moving forward for the beat up of the filling, through the movement of the cam lever 36 by means of the cam -l0 and connections thereto, the slide 22 is caused to move inwardly, the member 26 being caused to enter the open shed into which the filling has been passed.

On the inward movement of the slide 22, the upper pivoted end of the rod 43 is caused to move to its dead center, thus causing the cutting member 25 to be raised to its upper position in the casing 24 and allowing the opening 25 to register with the opening 2 1, and thus causing a continuous vacuum passage through the members 25 and 26 through the tubing l6, and into the vacuum receiver 17.

It will be readily seen that should the member 26 engage with a broken end the vacuum would cause said end to be carried into the chamber of the members 25 and 26, and upon the return movement of the cutting member 25, said end would be severed by the registering edges of the openings 24 and 25 and thus be carried to the receiving chamber by means of the vacuum.

With the operation of the above, it will readily be seen that it is necessary, for perfect cloth, to retain the particular shed, from which a broken or incomplete pick has been removed in its open position, until a complete pick has been placed therein, therefore for a more complete understanding I will describe my harness holding mechanism separately, referring to Figs. 11 to 15.

Secured to the shaft 1% is a gear 50, which meshes with a gear 51 secured to an auxiliary shaft 52, said shaft being mounted in suitable bearings of stands 53, which are, in this instance secured to the floor. Secured to said shaft 52 is a locking block 54: having a projection 5 1, which engages a recessed portion 55 of the harness cams 55 which are, in this instance formed integral and loosely mounted on the shaft 52. The harness cams 55 are retained in their engaged position with the block 5-Ll by means ,of the compression spring 56, which encircles the shaft 52. Secured to the shaft 52, by means of a sliding key, is a cam 57 which engages a projection 58 of a lever 58, said lever 58 being pivoted at 59 to a suitable stand 60.

The opposite end 58 of said lever 58 engages a portion 55 of the harness cams 55.

The cam 57 is retained in its normal disengaging position, as shown by broken lines, Fig. 11, by means of a compression spring 61, which encircles the shaft 52. Pivoted at 62 to the stand is a lever 63, the lower portion of which is yoked to engage a recess in the hub of the cam 57. The upper portion of said lever 63 has secured thereto, one end of a cord 61, said cord 6% passing, in this instance, around a roll 65, which is pivoted to a suitable stand 66, secured to the loom side 11. The opposite end of the cord 6% is attached to the lower end of a vertically extending lever 67, said lever 67 being pivoted at 68 to a stand 69 secured to the loom side 11. The upper end of the lever 67 has pivoted thereto at 70 the filling fork 71, said fork having a projection 71 the extracting mechanism, the above mentioned parts pertaining to my harness holding mechanism.

The harness. not shown, is operated in the usual and well known way, by the harness cams 55'which are revolved by means of the gear secured on the drive shaft l t and the gear 51 secured on the cam shaft 52.

The cam 57 is retained in its normal disengaged position, as shown by broken lines, Fig. 11, by means of the spring 61. The lever 58 will also be disengaged from the harness cams 55, the harness cams thereby being caused to rotate with and in the direction of the member 54 secured to the shaft 52.

During the normaloperation of the filling the fork 71 will be lifted, as shown by broken lines, Fig. 12, allowing the lever 72 to be operated by the cam 7 5 without engaging the portion 71? of said filling fork 71.

lVhen the filling becomes bro ten, the fork projection 71 will remain in the path of the potrion 72 of the lever 72, and carried with said lever 72 in the direction of the arrow, Fig. 12; this, as will be readilyseen', will cause the cord 64 to operate the lever 63, thereby causing the lever '63 to move the cam 57 into the engaging path of the projection 58 of the lever 58.

The projection 58' of the lever58, will enthe face 55 of the cams 55, thereby locking the harness cams 55 and retaining the open shed of the warp in which the filling has become broken and retain the shed in this position until a complete filling is indicated, by the filling fork 71, and the projection 7 retained out of the path ofthe portion 72 of the lever 7 2.

During the holding of the cams 55 the portion 5% of the member 54: will become disengaged from the recessed portion 55 of the cams 55 and through the action of the holding mechanism will revolve with and in the direction of the shaft until such time as the holding mechanism is released thereby allowing the portion 54 of the member 54 to engage the recess 55 of the cams 55 and thereby revolve said cams 55 with and in the direction of the member 55 and shaft 52.

In the accompanying drawings, I have ends of the lay.

draw a broken or incomplete pick.

shown the filling fork mechanism on but one side of a loom; it will be readily understood that the same may be applied to both sides of the loom.

From the above combination, it will be seen that I have provided a novel device for removing broken and incomplete picks from the shed and retaining the open shed until a complete pick has been placed therein, thereby making perfect cloth.

The above is adaptable to any of the well known automatic supply looms adapted to change either bobbins or shuttles having the supply mechanism either atone or both Having thus described my invention it is evident that many changes and modificadisclosed, orto the application of the de-[ vices to either one end or both ends of the lay, and what I claim is 1. A loom, having'a shuttle, picking means to lay the filling of sald shuttle in the shed of the loom, and means carried by the lay of. said loom to withdraw a broken or incomplete pick intact.

2. A loom. having a shuttle, picking means to lay the filling of said shuttle in the shed of the loom, and pneumatic means positioned at opposite sides of said shed and carried by the lay of said loom to engage andwith- 3. A loom, having a shuttle picking means to lay the filling of said shuttle in the shed of the loom, and means secured to the lay and positioned to enter said shed to engage and withdraw a broken or incomplete pick as an entirety.

LA loom, having a shuttle, picking means to lay the filling of said shuttle in the shed of said loom and means carried by said lay and adapted to enter said shed to onor mcompletepick.

5. A loom, having a shuttle, picking means to lay the filling of said shuttle in the shed of said loom, and means carried by said lay at opposite sides of said shed and adapted to enter said shed alternately to engage and withdraw horizontally, before beat-up a broken or incomplete picln G; A loom, having a shuttle, picking means to lay the filling of said shuttle in the shed of the 10013.1,8116. means carried by said lay adapted to enter said shed and withdraw in a substantially horizontal direction from the shed before beat-up the two ends and withdraw horizontally a broken of a broken pick.

means, carried by the lay, adapted to enter the end of the shed before beat-up and to withdraw therefrom a broken or incomplete pick as an entirety.

8. A loom, having a shuttle, picking means to lay the filling of said shuttle, and broken or incomplete pick withdrawing means, carriedby the lay, adapted to enter the ends of the shed before beat-up and to withdraw therefrom the two ends of a broken or incomplete pick.

9. In an automatic loom, a warp, harness changing means to form a shed of said warp, a shuttle, picking means to lay the filling carried by said shuttle in said shed, means adapted to indicate a broken or incomplete filling in said shed and operative to retain said shed in its open position and means for removing a said broken or incomplete pick from said open shed the continuing operation of the loom bringing the fresh and complete pick in said open shed.

10. In a weft replenishing loom, a warp, harness changing means to form a shed of said warp, a shuttle,picking means to lay the filling carried by said shuttle in said shed, filling indicatmg means adapted to engage said filling and upon indication of a,

broken or incomplete filling to retain said shed in its open shed and means for automatically removing a broken pick from said open shed, the loom meanwhile continuing in operation.

11. In a weft replenishing loom, a warp, harness changing means to form an open shed of said warp, a shuttle, picking means to lay the filling carried by said shuttle in the open shed, filling indicating means adapted to indicate a broken or incomplete filling in said open shed, and adapted to retain the open shed until a complete filling has been placed therein, and means adapted automatically to remove said broken or incomplete pick, whereby the operation of the loom is uninterrupted and a perfect pick of filling is brought into the same shed from which the imperfect pick was removed.

12. In a weft replenishing loom, a warp, harness changing means to form a shed of said warp, a shuttle, picking means to lay the filling carried by said shuttle in said warp, means adapted to engage said filling before beat-up and upon indicating a broken or incomplete filling to retain said shed in its open position, and means adapted to remove said broken or incomplete pick from said shed, said indicating means being effective to cause resumption of the normal shedding operation when a fresh and complete pick has been placed in said shed from which the broken filling was removed, thus producing perfect fabric without stopping the loom.

13. In a weft replenishing loom, awarp, harness changing means to form a shed of said warp, a shuttle, picking means to lay the filling carried by said shuttle in said shed, pick indicating means to engage the filling before beat-up and operative upon indication of a broken or incomplete filling to retain said shed in its open position until indication of a complete pick of filling in the specific open shed, and means for automatically removing said broken or incomplete pick from said open shed before the complete pick has been placed therein, thus permitting the loom meanwhile to continue in operation.

14. In a weft replenishing loom, a warp, harness changing means to form a shed of said warp, a shuttle, picking means to lay the filling carried by said shuttle in said warp, filling indicating means disposed at opposite sides of said shed and adapted upon indication of a broken or incomplete filling to retain said shed in its open position until indication of a complete filling in said shed, and means for automatically removing said broken or incomplete pick from said shed, thereby making possible the production of perfect cloth without knocking oil the loom.

15. In a device for removing broken filling threads from the warp of a loom the combination with the lay and a guiding means extending'longitudinally thereof crosswise the loom, of a slide movable on said guiding means at each end of the loom, anda suction device carried by each slide for removing the broken filling threads.

16. In a device for removing broken threads from the shed of a loom, the combination of the lay, a guide extending along the lay, a slide movable on said guide, a cam timed to move (with) the lay, means connected with the cam for moving the slide inwardly toward the center of the loom as the lay is about to beat up after the shuttle is thrown.

17. In an automatic loom, a lay, shed forming mechanism, a shuttle to deposit weft in a shed formed on said lay, weft eX- tracting means adapted to enter said shed and to extraot'from it a broken or incomplete pick, and means operative upon occurrence of such broken or incomplete pick to control the shed forming mechanism so as to bring the new pick in the proper empty shed while continuing the loom in operation.

In testimony whereof I have hereunto set my hand.

CHARLES CROMPTON. 

